Grain stacker



L BIRKELAND.

GRAIN STACKER. A?Pi,iCATlON FILED MAR. 10. 1921.

amma @ut. 3, 1922 3 SHEETSS HEET l- 1. BIRKELANILV GRAIN STACKER.APPLICATION FILED MAR. 10, 192:.

Patented m. T 2.

3 SHEETS-SHEE l. BIRKELAND.

GRAIN STACKER. APPLICATION FILED MAR. 10, 1921.

MPZQJM, Patented Oct. 3, 1922.

3 SHEETS SHEET 3 Patented @ch 3, i922...

an ll Pk GRAIN STACKER.

Application filed March 10, Serial 1W0. 51,097.

T 0 all whom it may concern:

Be it known that l, INeoLr BIRKELAND, a citizen of the United States,residing at Fort Benton, in the county of Uhouteau and State of Montana,have invented a new and useful Grain Stacker, of which the following isa specification.

This invention relates to harvesting machines and more particularly tomachines known as stackers, of the type adapted to carry and drive aheader that cuts and delivers grain to the stacker.

An object of the invention is to provide a stacker which will form. astack in such a manner that when the same is dropped or deposited onlevel ground, the material forming the stack will slope from the renterdownwardly and outwardly, forming a crown to shed water and permit thegrain to cure.

A further object of the invention is to provide an adjustable hinged.bottom designed to discharge a stack in a manner to form variable slopesto the straw forming the stack.

With the foregoing and other objects in view which will appear as thedescription proceeds, the invention resides in the combination andarrangement of parts and in the details of construction hereinafterdescribed and claimed, it being understood that changes in the preciseembodiment of the invention herein disclosed, may be made within thescope of what is claimed, without departing from the spirit of theinvention.

Referring to the drawings:

Figure 1 illustrates a side elevational view of astacker constructed inaccordance with the present invention.

Figure 2 is a plan view of the same.

Figure 3 is a rear elevational view; and

Figure 4. is a detail view disclosing the connection between the bottomsections and the Z bars supporting the side walls thereof.

Referring to the drawings in detail, the stacker includes outer frames,one frame being formed of the side members 1- and 5, connected at theirforward ends and mounted on a wheeled truck 2, the side members 4 and 5diverging towards the rear of the machine, so as to permit the headerdrive wheel 1, associated therewith, to be positioned therebetween atthe rear end of the same.

Members 6 and 7, form a part of the other frame which is centrallymounted upon the doors close one end of the stacker, and

supporting wheel 3, and which is constructed in the usual and well knownmanner. Extending across the front end of the machine and connecting theframes, is the overhead axle member 10 and braces 8 and 9 respectively,which braces are held in position. by means of the truss rod 29.

Connected to member f by the hinges 15,

is the header frame 16 which extends later ally and is supported at theouter end by wheels 17. Bolted to members 5 and 6 are upright 2 bars 12,to which bars are riveted sheet iron plates forming the side walls ofthe stacker, the plates being indicated by the reference character 12.The front and end walls of the stacker are of like construction, the Zbars being bolted to member Doors 18 are mounted upon the rear Z bars 12by means of the hinges 38, which the angle the i The doors 31 form theboitom of of drums for operating the same, the

hand wheel. 22 being provided and. adapte'l to cooperate with the pawl23 to secu e the winding drums against movement. Drums 21 have cables i9running downwardly and connected to the front ends of the angled bar 32.

Secured to the rear ends of the angle bars 32 are the pulleys 20 whichaccommodate the cables 19, which pass from the drums the header drivewheel 1 and transmits ion through the chain 26, sprocket wheel 25 andflexible coupling 28,1310 the header shaft 27 that operates a headerconstruction not shown.

in operation, grain is delivered into the stacker by the header ormachine associated therewith. the material being?) of. course scatteredand tramped down. When sufiicient amount of grain has been deposited inthe stacker, the stacker is brought to a standstill, and by means ofwheel 22, pawl sprocket 2- 1- is keyed to the ax e of 23, drums 21 andcables 19, and 19, bottom 31 is released, the stack, or the weight ofthe contents of the stacker forcing the same open, whereupon the stackfalls to the ground. I

ihe stacker is now moved ior'wardly, cables 19 having some slack willallow doors 13 to open when the stack contacts therewith. When themachine is clear of the stack, the bottom 31 is reset by means of thehand wheel 22, drums 2i and cables 19,

Due to the normal downward slope of the bottom doors when the stack isbeing formed, there will be more grain in the center of stack than atthe outsides thereof, so that when the stack drops on the ground, thesides otthe stack will settle causing the straw in the stack to slopedownward to the edges of the stack forming a crown thereon, thus settinga completed stack, even though the machine is filled to its capacity.

With the invention thus described, what is claimed as new is 1. In astacker, outer frames, each of said frames comprising spaced walls, amovable bottom, hinged ooors at the rear oi" the stacker, cables securedto the movable bottom and extending in proximity to the hinged doors tonormally hold the hinged doors in their closed positions, a wheeledsupport for the stacker, and means for operating the movable bottom andhinged doors.

2. In a stacker, outer frames, wheeled doors of the bottom in theirnormal position, said holding means cooperating with the hinged doors atthe end of the stacker for normally holding the hinged doors in theirclosed positions, and means for releasing the said hinged doors topermit the weight of the material positioned in the stacker to move thesaid inclined doors to their open positions.

3. In a stacker, outer frames, each of the frames comprising inner andouter walls, inclined doors forming the bot-tom of the stacker andhaving connection with the inner walls, vertical doors hingedlyconnected to the inner walls, said vertical doors adapted to contactwith the inclined doors to restrict movement thereof, securing meanshaving connection with the inclined doors for securing the inclineddoors against movement, and said securing means adapted to engage thevertical doors to normally hold the vertical doors in their closedpositions.

In testimony that I claim the "foregoing as my own, I have heretoaflixed iny signature in the presence of two witnesses.

INGOLF BIEKELAND. lVitnesses B. H. Kiznrs, G. C. SCHMIDT.

